<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数">
<input type="button" value="猜一猜" onclick="f()">
<h3>结果:<span></span></h3>
<script>
    let x = parseInt(Math.random()*100)+1;
    let i = document.querySelector("input");
    let s = document.querySelector("span");
    let count = 0;
    function f(){
        count++;
        if(i.value<x){
            s.innerText = "猜小了";
        }else if(i.value>x){
            s.innerText = "猜大了";
        }else {
            s.innerText = "恭喜你第"+count+"次猜对了";
        }
    }
</script>
</body>
</html>